Trophic and functional organization of the benthic macrofauna in the lagoon of Boughrara – Tunisia (SW Mediterranean Sea)

摘要: The lagoon of Boughrara is the largest in Tunisia. For several decades it has been subject to impact increasing anthropogenic activities, and also environmental stressors due climate change low renewal its waters. present work a contribution study functional organization benthic macrofauna 3 years after extension channel ‘El Kantra’ which connects this open sea. In total, 13 stations facing main prospective sources disturbance areas likely be more polluted were seasonally sampled during 2009–2010. Seasonal monitoring abiotic parameters shows spatial heterogeneity linked factors, including hydrodynamics, sedimentary texture activities. community generally poorly diversified at lagoonal-marine undergoing influences both marine environment. extreme seasons terms temperature salinity seem have an important role reduction biodiversity Boughrara. trophic structure macrobenthic dominated by selective deposit feeders, seems availability resources than disturbance.